(total discharge head) = total dynamic head. Is the total height difference (total static head) plus friction losses and demand pressure from nozzles etc. The vertical height difference from the surface of the water source to the discharge point is known as total static head. Is the vertical height difference from the surface of a water source to the center-line of the impeller. Centrifugal pump curves show pressure as head, which is the equivalent height of water with specific gravity = 1. Is the measure of the pressure or force exerted by water expressed in feet. The pressure of a column of water is about 0.433 psi per foot of column height Is the pressure exerted by a vertical column of water inside of a well casing or a pipe, measured at the bottom of the column. Is the weight of liquid in comparison to water at approximately 68☏ (SG =1). Suction lines are generally designed to keep friction losses to a minimum and the discharge size is determined by the head generated by the friction losses and cost considerations. Why is the discharge pipe diameter of a centrifugal pump smaller than the suction pipe?Ī centrifugal pump apply centrifugal force to generate velocity this force converts the energy by accelerating the fluid between suction and discharge, the outlet has a higher velocity due the small area of the tri-clamp compared with the Suction area, but the flow is the same. The pressure of a column of water is about 0.433 psi per foot of column height. For example a Sugar syrup 60 Brix, have an specific gravity of 1.29
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